Wire-cutting machine



May 2l, 1929. M D, KlLMER 4 y 1,714,094

I WIRE CUTTING MACHINE Filed April 28, 1927 s sheets-sheet i1 May 21, 1929. M, b, KILMER 1,714,094

I WIRE CUTTING MACHINE Filedv April 28, 1927 s sheets-shea `2 5f 61 52' fr f 49 'l I 45 4Z @1 4o '.47 47 Myzl, 1929. LD KILMER I 1,714,094

WIRE CUTTING MACHINE Filed April 28, 1927 3 Sheets-Sheet 3 f uw IIIIIIN lllllllllllllll re 6, cfa portionofthe wire-Straightening .50 taken in the :plane `indicated the line 'XI'-XI,Figure9. A j a. Referring rticularly to the annexed drawingsinw patented any 21,1'929.

UNITED sTAiEfs PATEN r f' oFFlc.

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' wma-comme mesma Applieauoii mea prix 2s,

A invention relates to wire-cuttingmachines and particularly relates to machines of this character adaptable for handling many different sizesof wire, readilyand easily -adjustablefor cutting wire of different lengths, combined with means forv straightening the wireand for feeding the same in. proper alignment with the cutting means.

The annexed `drawings and the following 10 description set forth indetail certain means embodying my invention, such means disclosing, however, but one of the forms in which the illustrated.

In said annexed drawings: Figure 1 is a side elevation of the complete machine for -feeding, straightening and cutting'the wire; e

Figure 2 is a fragmentary'vertical trans- 20 verse section, upon an enlarged scale, taken in the plane indicated Figure 1.; f-Fif re '3' is an end elevation, taken from the right'lhand side of Figure 1;

Figure -4 is a plan view ofthe complete machine;j 1 Y Figure 5 is a by the line II-'-II,

view' similar Figure 4,

i upon an enlargedscale, vofa portion of the wire-straightening means;

Figure 6 is an end elevation, taken from' the plane indicated by the line VL-VI, Flg-L ure 5, of a portion o the wire-straightemng means; Y A

Figure 7 is a side elevation, taken from the plane indicated by the line VIP-VII, Figthe several parts are' indi cated bythe same respective ordinals in the different views, I show'a table 'or bench 1 Whehforms a support for a `base 2 upon principle of the invention may be ,and 22. The alternately `are similarly mounted.- and adJusted.

means are provided fr independently-ad-' justing the several rolls of the;Y two series 8, and 9 for adjusting the two series as a whole' V192'?. Serial No. 187,238.

whichare secured c 3 sind 4 of wirestraightening, and wiref eeding and cutting mechanisms, 5`and 6, respectively. Referring particularly to Figures 1 and 4, the wire 7 is procured from a reel orany' other suitable dy of. wire' (not shown) vand is pulled Y through the wire-straighteningmechanism 5.V

by a eed device, hereinafter fully described, attached to'and forming a part of thewirecutting means 6, and severed into wire-pontions 7 't of the desired length by means of a diebi and nknife 61 hereinafter fully descri e The wire-straightening means comprises two seriesof cooperating rolls'mounted in the casting 3, one series 8 having verticallyaligned axes, and the other series 9 having' n horizontallyaligned axes, vin Figure 1. The vertical and horizontal as plainly shown series of rolls each consists of a number of alternately staglgered rolls, Figure 4, the rolls in the series8f eing indicatedin one row by the ordinal 10 and inthe alternately sta gered row bythe ordinal 1 1, the corresponding rolls of the series 9 beingindifcated by the ordinals 16 and 17. The two series of rolls 8 and 9 are similar, Vexcept that they are arranged relatively rightangular oneto the Y other, and I shall describe the Ycor'istruction .and operation of dthe rolls of series 9"'only', particularly adapted to slide in a slot thus securing said pin to the casting- 3, the pin 18 intersecting aA block 19 adapted Vto be vertically-oliihorizontally adjusted, depending upon `w serie's of rolls is concerned, in '.the casting 3 by means of op screws 2 1 v rolls 17 in relatively right-an gular planes, both series being further lateral y 3 is secured-to the base 2 by means ofv bolts 12 andan elongated slo't 12. Furthermore,

referring to 1 4, 5 6 7 and 8. A Vroll 16 ismounted to rotate ilpbn a pin 18 provided at one end with a Anutadjustable b 'reason of the means now to-be described. Il; will be noted in Figure 4'that one end of thecasting l nurL 13 intersecting elongatedslots 13-formed in the casting 3.- It will also be noted that the other end of the casting 3 is similarly ady justably secured bymeans-of a single bolt 1 ai 1 adjustable means are provided for' guiding Y the wire 7 into the s traighteping 25 wire, the accommodation afforded by the roll means comprise a plate 3ilaterally adjustably secured to one end face of the casting 3 j by means of a bolt 14 and an elongated slot t will be noted in Figure 6 that the plate 3' is adapted for adjustment within an elongated recess 32 formed on top of the casting 3 and at one end of the latter. The means described and shown provide effective mecha- .nism for straightening the wire both vertically and horizontally and by very minute l adjustments in the several planes so as to permit the same to be pulled in proper, alignment with the cutting mechanism and the guides thereto now to be described.

y A pair of adjustable cooperating feed rolls 26 and 27 are secured to substantially parallel but relatively adjustable shafts 40 and 2 8, Figure 2, mounted upon the casting 4 as hereinafter fully described. Only one of the rolls, viz, roll 27 is formed to accommodate the wire 7, the other roll 26 simply cooperating therewith to pinch and properly pull the 27 consisting of a plurality of peripheral grooves 27', of different sizes to care for wires of dierent diameters. Secured to the outer ends of the respective shafts are cooperating gears 41 and 42 by means of which the posi- 'tive rotation ofthe feed roll 26 is effected.

The rotation of the main shaft 28 is effected byan operating handle 29, the actual connection between this\handle and the shaft consisting of the following means. The hub of a ratchet wheel 30 is secured to the shaft 28, this ratchet wheel 30 cooperating with a spring-pressed pawl 31 secured by means of a bolt 33 to the handle 29. In order to provide for the feed of wire portions of different lengths, I secure to the base 2 by means of bolts 35, Figure 9, an annular plate 34 having two elongated slots 36 intersected by wing screws 37 provided with lock nuts 38 and extending inner ends 39 lying in the path of movement of the rib 32 formed on handle 29, as plainly shown in Figures 2, 9 and 10.

' from the reel and through the straightening devices 5. The mounting for the shafts 28 and 40 and means for vertically adjusting same are as follows. The shaft 28 is mounted in bearings 43 and 44 and the shaft 40 in bearings 45 and 46. These bearing members are slidably contained between vertical guides 47 to the top of which are secured longitudinal caps 49 by means of bolts 49', any excessively loose play between the bearings land slides 47 being eliminated through the mediumpof adjusting screws 55 provided with lock nuts 55. The cap plates 49 are formed with raised ,the convenient reach of the operator.

and adapted'to cooperate with screws 51 and 52 provided with lock nuts 51 and 52', respectively. These screws bear upon horizontallyaligned plates 48 contained within recesses 53 formed in the bosses 50 and held tightly up against the bottom ends of the screws 51 and 52 by means of coil springs 54 mounted upon the respective bearing blocks" 45 and 46. lt will be `noted in Figure 2 that a clearance 77 is shown between the bearing blocks 45 and 46 and thebosses 5() whereby it is indicated that the shaft 40 and hence the feed roll 26 can be somewhat vertically adjusted to provide a varying pressure upon the'wire 7 or to provide for feeding wire of varying' diameter. Furthervertical adjustment is provided between the bearing blocks 43 and 46, 44 and 45, respectively, by the following means. A bolt 56 intersects the casting 4 and is adapted'to bear against and vertically adjust the bearing block 43, clearance being provided for this adjustment through the medium of a recess 2 formed in the base 2 'and within which the head of the' bolt 56 is contained. A second bolt 57 provided with a lock nut 58 bears against the undersurface of the bearing block 45 and is threaded into the upper surface of the opposed lower bearing block 44. These several means provide vertical adjustment for the feeding mechanism whereby the wire 7 is fed in proper alignment to cutting means now to be ldescribed and whereby the proper cooperation of the feed rolls 26 and 27 may be secured for feeding wire of varying diameters.

' The cutting knife 6l is simply a suitable bar having a shear blade section and is pivoted at one end upon a bolt 64 to an upright bracket 62 secured to the casting 4. This bracket 62 is provided with a tubular hardened die 63 through which the wire 7 is forced and adjacent thel outer eXitrend of which the wire portion 7 is severed from the main body of the wire. The knife 61 is operated either manually or by a treadle in the following manner. strap 69 is pivotally secured at one end tothe spring-controlled treadle proper 70, this strap at its upper end being adjustably secu-red by means of a guide 67 and a set screw 68 to a link 65 which is bent at one end to pass around one side face of the knife 61 and cooperates with a second link or strap member 66 to form a U-shaped holder for the knife 61. The purpose of the adjustable feature provided by the members 65, 67 and 68 is to thereby enable the treadle 70 to be used at varying heights according to the desires or For hand operation, the knife 6l is fastened by the bolt 71 in the position shown in dot-anddash outline, Figure 3, this connection being adj acently below the hardened die 63 and the cutting edge for the wire herenbefore For treadle operation, aV

described .with 'reference to thefoot operation. It is evident thatv this connection permitsv the cutting bar 61 to be pulled toward the operator by hand operation in distinction to the foot operation whereby the cutting bar 61 is pulled away ciprocable movement of said handleto determme the amount of wire to be fed; and means for cutting the wirel'- y 2. In a wire-cutting machine,` wire-feeding means, including cooperative wire-receiving rolls, a shaft to which one roll 1s secured, an

operating handle secured to said shaft for movement in one direction and free of said shaft for movement in the other direction, and handle stops adapted to be7 fixed in selective positions to determine the amount of wire to be fed; and means for cuttingA the wire. I

3. In a wire-cutting machine, wirefeeding means,l including cooperative wire-receiving rolls, a shaft to which one roll is secured, an .operating handle secured to said shaft forY movement in one direction and free of said shaft for movement in the other direction, aI

fixed grooved segment, and stops adjustably `mounted in the groove of said segment and positioned to intersect the path .of movement ofsaid handle upon both sides of the latter to determinethe amount of wire to be fed;

and means for cutting the wire.

4. In a wire-cutting machlne, w1re'feed1n i means, including cooperative wire-receiving rolls, a shaft to which one roll 1s secured, an

operating handle rotatably mounted upon said shaft, a ratchet secured tosaidshaft; `a cooperatingrpawl secured to said handle, Va

fixed segment axially-aligned with said shaft,

a pair of spaced .annular grooves being formed in said segment, valpair of stopsQadjustably mounted in said grooves, respectively, .and having extended ends laying 1n the path.of movement of said handle, the,

i latter being e. and means v positioned between said or cutting the wire. 5. In' ai wire-cutting machine, a main frame; wire-straightenmg rolls mounted -thereon; means for laterally adjusting -said -1rolls .a transverse shaft; verti'ealmly-adjust- Stops;

6. In a-wiregcutting machine, a feeding device comprising a support; a vertically-adjustable block mounted thereonand forming a bearing; a shaft journalled in said bearing.;

a gear secured to said shaft; a second bearing ing sald bearing blocks; upper bearing blocks mounted in said slides; a second shaft jourf nalled in said upper bearing blocks; coiled ward, pressure uponY said upper blocks and means for adjusting the tension of said block for said shaft; vertical slides for hold-l springs mounted upon and exerting downsprings; a cooperative gear secured to said f second shaft; and cooperative wire-feeding rolls secured to said shafts.

7. In a wire-cutting machine, a feedingl device comprising a support; a frame mounted thereon and provided with two lower'bear- 4ing members vertically adjustable therem; a shaft journalled in said bearings; a gear secured to said shaft; means for vertically] adjusting one ofsaid lower bearing members, upper bearing blocks vertically adjustably mounted in saidframe; a second shaft journalled in said upper blocks; a cooperative gear secured to said second shaft; coiled vsprings mounted upon and e rting down- Ward pressure upon said-upper blocks fand means for adjusting the tension of said springs; means adjustable in length fpr spacing the other lower bearing member and one of said upper bearing blocks and coopera- -tive wire-feeding rolls secured to said shafts. 8. A wire-cuttmg device comprising a support; a die mounted therein and formed with an upper wire-cutting edge and a lower wire cutting edge; a cuttmg member; means for pivotally' mounting the latter adacently above said upper cutting edge; an

' forded. y A Y ;v

fSigned byme vthis 26th day f April; 1927. Y D. ,K ILMER.

means 

